GHSA-j5vv-6wjg-cfr8

Suggest an improvement
Source
https://github.com/advisories/GHSA-j5vv-6wjg-cfr8
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-j5vv-6wjg-cfr8/GHSA-j5vv-6wjg-cfr8.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-j5vv-6wjg-cfr8
Aliases
Related
Published
2024-12-27T18:02:02Z
Modified
2024-12-27T19:24:02.779501Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
changedetection.io Vulnerable to Improper Input Validation Leading to LFR/Path Traversal
Details

Summary

Improper input validation in the application can allow attackers to perform local file read (LFR) or path traversal attacks. These vulnerabilities occur when user input is used to construct file paths without adequate sanitization or validation. For example, using file:../../../etc/passwd or file: ///etc/passwd can bypass weak validations and allow unauthorized access to sensitive files. Even though this has been addressed in previous patch, it is still insufficient.

Details

The check in this line of code is insufficient.

if re.search(r'^file:/', url.strip(), re.IGNORECASE):

The attacker can still bypass this by using: -file:../../../../etc/passwd -file: ///etc/passwd (with space before /)

PoC

  • Open up a changedetection.io instance with a webdriver configured.
  • Create a new watch with file:../../../../etc/passwd.
  • Check the watch preview.
  • The contents of /etc/passwd should pop out.

Screenshots

image image

Database specific 
{
    "nvd_published_at": "2024-12-27T16:15:25Z",
    "cwe_ids": [
        "CWE-200",
        "CWE-22"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2024-12-27T18:02:02Z"
}
References

Affected packages

PyPI / changedetection-io

Package

Name
changedetection-io
View open source insights on deps.dev
Purl
pkg:pypi/changedetection-io

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.48.05

Affected versions

0.*

0.38.2
0.39
0.39.1
0.39.2
0.39.3
0.39.4
0.39.5
0.39.6
0.39.7
0.39.8
0.39.9
0.39.10
0.39.10.post1
0.39.10.post2
0.39.11
0.39.12
0.39.13
0.39.13.1
0.39.14
0.39.14.1
0.39.15
0.39.16
0.39.17
0.39.17.1
0.39.17.2
0.39.18
0.39.19
0.39.19.1
0.39.20
0.39.20.1
0.39.20.2
0.39.20.3
0.39.20.4
0.39.21
0.39.21.1
0.39.22
0.39.22.1
0.40.0
0.40.0.1
0.40.0.2
0.40.0.3
0.40.0.4
0.40.1.0
0.40.1.1
0.40.2
0.40.3
0.41
0.41.1
0.42
0.42.1
0.42.2
0.42.3
0.43.1
0.43.2
0.44
0.44.1
0.45
0.45.1
0.45.2
0.45.3
0.45.4
0.45.5
0.45.6
0.45.7
0.45.7.1
0.45.7.2
0.45.7.3
0.45.8
0.45.8.1
0.45.9
0.45.11
0.45.12
0.45.13
0.45.14
0.45.15
0.45.16
0.45.17
0.45.18
0.45.19
0.45.20
0.45.21
0.45.22
0.45.23
0.45.24
0.45.25
0.45.26
0.46.0
0.46.1
0.46.2
0.46.3
0.46.4
0.47.0
0.47.1
0.47.2
0.47.3
0.47.4
0.47.5
0.47.6
0.48.0
0.48.1
0.48.2
0.48.3
0.48.4